Not all replica Cobras are the same and the Factory Five Cobras are the world’s best selling replicas of the famous Shelby Cobra. Racing classes exist around the country specifically for race spec Factory Five replicas.
Running this Shelby GT500 Super Snake first on 91 octane pump gas and then on 98 octane Sunoco racing fuel confirmed what we saw two weeks ago with the GT350 that these cars will greatly benefit from higher octane fuels. The Super Snake saw an increase of 46 hp giving it around 740 gross horsepower.
Fifty years after the original Shelby GT350 a new one is now available in dealerships. Ford rates this 2016 Shelby GT350 at 526 hp but it wasn’t until we drained out the premium pump gas and put 98 octane Sunoco race fuel through it that we were able to see those numbers. To our surprise switching fuels netted a gain of 25.5 horsepower with this car.